3 Earth's Features

World Book's Learning Ladders Earth's features

世界图书的学习阶梯地球的特点

Mountain A mountain is a part of the land that stands tall above the rest of the earth. Mountain peaks can reach into the clouds. The higher up a mountain you go, the colder it becomes. Some mountains stand alone, but most come in a long row. Mountains that rise side by side are called mountain ranges.

山是陆地的一部分，高于地球的其他部分。 山峰可以直插云霄。 你爬的山越高，就越冷。 有些山是单独矗立的，但大多数是连成一长排的。 并排升起的山叫做山脉。

The peak of a mountain may be covered by ice and snow. The slope of a mountain may be steep. Water from snowmelt flows down the sides of a mountain. Mountain goats have large hoofs to help them climb steep slopes. It's a fact! Mount Everest in Asia is 29,035 feet (8,850 meters) tall. That's as high as 23 Empire State buildings!

山峰可能被冰雪覆盖。 山的斜坡可能很陡。 融雪的水顺着山坡流下来。 山羊有大蹄子，可以帮助它们爬上陡峭的斜坡。 这是事实!亚洲的珠穆朗玛峰高29,035英尺(8,850米)。 有23座帝国大厦那么高!

Volcano A volcano is a place where hot liquid rock called lava flows out of the earth. Volcanoes also release ash and rocks. Some volcanoes give off lava slowly. Others explode in huge eruptions. A volcano begins as an opening in the earth. Over time, dried lava or rock may build up around it. This gives the volcano its shape.

火山是一个被称为熔岩的热液体岩石从地球流出的地方。 火山也会释放出火山灰和岩石。 有些火山喷发熔岩的速度很慢。 另一些则在巨大的喷发中爆炸。 火山起源于地球上的一个开口。 随着时间的推移，干燥的熔岩或岩石可能会在它周围堆积起来。 这就形成了火山的形状。

Ash rises from the opening of a volcano. Rocks erupting from a volcano can leave trails of fire. Melted rock called lava flows down the sides of a volcano. When lava cools, it hardens into rock, It's a fact! In 1980, Mount Saint Helens in Washington state exploded in a huge eruption. Ash fell as far away as Minnesota and Oklahoma.

火山灰从火山口升起。 从火山喷发出来的岩石会留下火的痕迹。 被称为熔岩的融化岩石沿着火山的侧面流下来。 熔岩冷却后会硬化成岩石这是事实1980年，华盛顿州的圣海伦斯火山大爆发。 远在明尼苏达州和俄克拉何马州的火山灰都落了下来。